Electrocardiographic parameters of captive lions (Panthera leo) and tigers (Panthera tigris) immobilized with ketamine plus xylazine
| Autor: | Fumio Honma Ito, Roberto Carvalho e Pereira, Maria Helena Matiko Akao Larsson, V. M. C Oliveira, G. G Pereira, Fernanda Lie Yamaki, Fernanda Montalvão Coelho, Elaine Cristina Soares, José Daniel Luzes Fedullo |
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| Rok vydání: | 2008 |
| Předmět: |
Lions
Male Xylazine medicine.medical_specialty Veterinary medicine QRS complex Electrocardiography Immobilization Species Specificity Heart Rate Reference Values biology.animal Internal medicine Heart rate Wandering pacemaker Medicine Animals Ketamine cardiovascular diseases Tigers Normal Sinus Rhythm Anesthetics Dissociative General Veterinary biology medicine.diagnostic_test business.industry Body Weight General Medicine medicine.disease Cardiology Animal Science and Zoology Animals Zoo Female Panthera business Adrenergic alpha-Agonists medicine.drug |
| Zdroj: | Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians. 39(3) |
| ISSN: | 1042-7260 |
| Popis: | Twenty-seven healthy captive lions (Panthera leo) and 13 healthy captive tigers (Panthera tigris) from Sao Paulo Zoo (Fundacao Parque Zoologico de Sa Paulo, Sao Paulo, Brazil) collection were selected for this study. They were anesthetized with ketamine (10 mg/kg) combined with xylazine (1-2 mg/kg) for physical examinations, hematologic and serum chemical analysis and electrocardiogram recording. The main aim of this research was to gather initial information about normal electrocardiographic parameters of large felids. Standard P-QRS-T deflections on leads described for domestic carnivores were analyzed, and they did not greatly differ from those of large felids, taking into account the greater weight and corporal mass of large felids. Heart rate of lions ranged from 42 to 76 beats per minute (bpm). Heart rate of tigers ranged from 56 to 97 bpm. In both species, the most common rhythm detected was normal sinus rhythm followed by sinus arrhythmia; wandering pacemaker was also observed with normal sinus rhythm or sinus arrhythmia. Mean electrical axis lay between +60 degrees and +120 degrees. QRS complexes were predominantly positive in leads DI, DII, DIII, and AVF, and negative in AVR and AVL. This study provides insights into normal electrocardiograms of large felids. Wider investigations on the same subject are necessary to establish criteria for the recognition of abnormalities in these species and should include other anesthetic drug(s) combinations and reports of electrocardiographic features of animals with cardiac disease and electrolytes disturbances. |
| Databáze: | OpenAIRE |
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